<template>
    <div>
       <city-header></city-header>
        <city-search :cities="cities"></city-search>
        <city-list :hot="hotCities"
                   :cities="cities"
                   :letter="letter"
        ></city-list>
        <city-alphabet :cities="cities"
                       @change="HandleLetterChange"
        ></city-alphabet>
    </div>
</template>

<script>
    import axios from 'axios'
    import CityHeader from'./components/Header.vue'
    import CitySearch from'./components/Search.vue'
    import CityList from'./components/List.vue'
    import CityAlphabet from'./components/Alphabet.vue'
    export default {
        name: "City",
        components:{
            CityHeader,
            CitySearch,
            CityList,
            CityAlphabet
        },
        data:function(){
            return{
                cities:{},
                hotCities:[],
                letter:''
            }
        },
        methods:{
            getCityInfo:function(){
                axios.get('/api/city.json')
                    .then(this.handleGetCityInfoSucc)
            },
            handleGetCityInfoSucc:function(res){
               res=res.data;
                if(res.ret && res.data){
                   const data=res.data;
                   this.cities=data.cities;
                   this.hotCities=data.hotCities;
                }
            },
            HandleLetterChange:function(letter){
                this.letter=letter
            }
        },
        mounted:function(){
            this.getCityInfo()
        }
    }

</script>

<style lang="stylus" scoped>

</style>